Probiotic
Postbiotics
Also known as: Heat-killed probiotics, Bacterial lysates, Probiotic metabolites
Metabolites and cell components from probiotics without live organisms. Good option for those who can't tolerate live probiotics.
Last reviewed June 2026 · Evidence graded from peer-reviewed research, not editorial opinion. Educational only — not medical advice.
Primary uses
- Gut health
- Immune support
- Probiotic alternative
How it works
- Beneficial without live organisms
- Includes SCFAs, peptides, cell wall components
- No risk of sepsis
Dosage
- Typical range
- Varies by product
- Timing
- Any time
- With food
- Either way
- Duration
- Safe long-term
- Special populations
- Immunocompromised who can't use live probiotics
Forms
- Capsules
- Powder
Safety
Common side effects
- Minimal
Contraindications
- None
Evidence notes
Emerging category with benefits
Grade B: Some human trials support key claims; further confirmation needed.
Related in Probiotic
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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider. Individual needs and risks vary — consult a professional before starting, stopping, or combining supplements, especially if you are pregnant or nursing, taking medication, or managing a health condition.